ABSTRACT
Theoreticalandpracticalexperienceinoperationalpsychologygivesevidencethat aneffectiveprognosisofprofessionalreliabilitydependsontakingintoaccountall indicatorsofworkproductivityincombinationwithindicatorsthatcharacterisethe psychophysiologicalstate(Lager,1974).Duetomethodicallimitations,thisstateis primarilyestimatedbysubjectiveratingsorobservation.Althoughsubjective methodsundoubtedlyprovidevaluabledata,theuseofphysiologicalmeasurescan enrichinsightintothehumanfactorwithinanyman-machine-system.The enormousdevelopmentsinthefieldsofelectronics,computers,andtheenhanced featuresofpresentdaysoftwaremakeitpossibletosuccessfullyapply sophisticatedlaboratorypsychophysiologicalmethodsunderfieldconditions.For theoperators,thisnewequipmentisidealbecauseitisnon-intrusive.Therapidly increasingnumberofpublicationsofphysiologicaldataobtainedunderrealflight conditionsdemonstratestheincreasedattentionofresearchersworldwide.The developmentoftheHEALLY-System(describedinmoredetailattheendofthe chapter)isacontinuationofourownresearchinnon-intrusivephysiological measurementattemptstogoastepfurtherfrompuredataloggingtoexpert knowledge-baseddiagnosisunderfieldconditions.
